5Pcs 5A XL4005 DC-DC Adjustable Step Down Module Power Supply Converter Specification: Module properties: non-isolated step-down module ( BUCK ) Rectification: non-synchronous rectifier Input voltage: DC 4V ~ 38V Output voltage: DC 1.25V ~ 32V ( adjustable ) Output current: 0A ~ 5A Output power: 75W ( more than 50W please add heat sink ) Operating Frequency: 180KHz Operating Temperature: -40 C ~ +85 C Load regulation: S(I)!#!amp!*!le;0.8% Voltage regulation: S(u)!#!amp!*!le;0.8% Package included: 5 x 5A DC-DC adjustable step down module